• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.15 no.2
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• pp.145-152
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• 2004

Background and Objectives : The current study aimed to 1) compare of Lingual function and alveolar sounds between 4-year-old Korean children with and without ankyloglossia, 2) investigate the correlation between ① maximum lingual length-protrusion(MLL-P) and percentage of consonants corrects(PCC) focused on alveolar sounds, ② lingual movement and PCC focused on alveolar sounds, ③ MLL-P and lingual movement. Materials and Method : Twenty-two 4-year-old children participated as subjects in the study: a control group of 11 normal children and an experimental group of 11 children who were previously diagnosed as having ankyloglossia. They were measured for lingual function (lingual length, lingual movement) and the performances of speech articulation. Results : Children with ankyloglossia displayed significantly shorter MLL-P than 4 year normal children. Experimental group displayed significantly worse lingual movement, lower PCC in Picture consonants test, and lower PCC of alveolar sounds than control group. Ther was significantly high correlation between MLL-P and lingual movement of experimental group. Conclusion : This paper describes clinical measure and functional aspects of the tongue. Such baseline analysis provides a more definitive appraisal of lingual function as well as a more objective basis for diagnosis and treatment of ankyloglossia.

• The Journal of the Korean dental association
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• v.25 no.10 s.221
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• pp.913-916
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• 1987

저작운동을 중추신경계와 말초조직의 작용에의해 일생동안 학습과 적응의 가정을 통해 이루어진다. 저작의 양상은 유치가 구강내에 맹출되면서 이루어지며, 상하악 치아의 접촉, 점막과 혀 및 치아상호간에 일어나는 접촉과 치근막의 고유수용기와 악관절 수용기등에 의해 조정되어 최종적으로 에너지소비가 적고 동통이나 불편함이 없이 최대의 효율을 나타내는 양상으로 된다. 그러나 원활한 저작과 하악은동을 이룩하기 위해서는 저작근, 악관절, 상하악 치아의 교합등이 서로 조화를 이루어야 한다. 만일 외상에 의해 악관절의 기능장애가 오면 저작근활동이 변화하고 이에따라 교합장애를 야기한다. 또한 치아를 상실하거나 대합치아간의 조기접촉이 있으면 교합장애가 원인이 되어 근육활동이 변화와 악관절 기능장애를 초래한다. 그리고 때로는 지나친 근육의 활동(이갈이, 지속적 긴장성 수축)에 의해 지나친 치아의 마모로인한 교합장애나 악관절장애를 일으킬 수 있다. 따라서 하악의 기능을 충분히 이해하기 위해서는 교합의 형태학적 관계와 더불어 저작계의 기능적인 면도 고려하여 그 상호관계를 검토하여야 하며 본문에서는 교합에 관련된 저작근의 작용과 이에 영향을 주는 요인 및 교합장애와 근육활동장애의 연관성에 관해 고찰코자 한다.

• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.4
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• pp.568-574
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• 2009

Tongue-tie is a congenital anomaly characterized by an abnormally short lingual frenum, which may restrict tongue tip mobility, In the neonate and infant, tongue-tie was said to cause difficult breast-feeding, In the older infant, toddler and young child, poor speech has been frequently listed because movement of tongue tip is limit ed. Also as a abnormal tongue position, various orthodontic problems, later mechanical and social manifestations could be developed. Treatment options such as observation, speech therapy, frenotomy and frenectomy have been suggested. The optimal timing for the surgery has not been determined, but early intervention may be appropriate for the children with significant tongue-tie who has the significant potential to speech difficulties and later social and mechanical problems. Sedation is an effective method for incapable of cooperative and the handicapped children, necessary to early intervention. We report three cases, using oral sedation for the frenectomy in young children with severe tongue-tie. After treatments, we could find out sufficient tongue movement and improved speech ability.

• The Journal of Korean Academy of Prosthodontics
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• v.61 no.1
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• pp.18-25
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• 2023

We present the case of a 65-year-old man with maxillary and mandibular complete dentures prepared using neutral zone technique after undergoing mandibulotomy due to tonsil cancer 10 years ago. The patient had a short edentulous period; hence, there was minimal absorption of the alveolar ridge and no abnormality in the motor function of the tongue. However, the retromolar pad was located inside the hamular notch, and the posterior alveolar ridge was relatively turned inward. If the artificial teeth would have been aligned conventionally, the functional space of the tongue would have been invaded, which would have moved the tongue posteriorly thereby reducing the stability of the denture. Therefore, applying the concept of the neutral zone can be a good reference point in such cases. The neutral zone was registered using tissue conditioner, and tooth alignment was performed by making a silicone putty index. The biggest advantage of using neutral zone concept is denture stability. In this case, the neutral zone technique was applied to obtain the lingual alignment limit of the posterior teeth to avoid invasion of the tongue space by the left posterior part of the mandible. Particularly, in case of a patient in which denture stability is difficult to obtain due to absorption of the alveolar ridge, it is believed that better results can be obtained using neutral zone technique.

• Therapeutic Science for Rehabilitation
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• v.12 no.4
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• pp.135-151
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• 2023

Objective : This study was conducted to confirm the effect of the oral motor facilitation technique (OMFT) on oral motor function in stroke patients. Methods : This study was conducted on 72 stroke patients with dysphagia were included. Thirty-six patients were randomly assigned to the experimental and control groups were randomly classified into 36 patients each using a random table, and a two-group pre-post test was designed. The experimental group underwent OMFT, and the control group underwent traditional dysphagia therapy for 30 min, once a day, 5 times a week for 4 weeks, for a total of 20 sessions. The Comprehensive Orofacial Function Scale (COFFS) was used to evaluate oral motor function. Repeated-measures analysis of variance (ANOVA) was performed to confirm the effect of the period, and an independent t-test was performed to analyze the difference in change between the two groups. Results : Total COFFS scores improved in both groups. The experimental group showed significant changes in mandibular and lip movements, cheek blows, and tongue movements. In addition, there were significant differences depending on the intervention period in terms of masticatory distribution, food spillage, swallowing of solid and liquid foods, and voice changes. There were significant differences in the mandibular opening and closing categories between the two groups. Conclusion : OMFT is effective in improving oral motor function in stroke patients with dysphagia and can be used as basic evidence in clinical practice.

• Journal of the korean academy of Pediatric Dentistry
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• v.38 no.3
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• pp.284-289
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• 2011

Lesch-Nyhan syndrome is a disease caused by metabolic disorder of purine. General muscle stiffness and hyposomia are shown from infancy and symptoms can include involuntary or irregular movements of arms and legs, mental retardation, and compulsive self-mutilating behaviors. Self-mutilating behaviors begin at approximately the first year or sometimes at late teens. The patients bite their lips, especially lower lip, tongue, buccal mucosa, hands and fingers. Tongue and lips can be injured or mutilated in severe cases. As the patient gets older, self-mutilating behaviors become more serious and extensive and secondary infection of injured areas is possible. Periodic soft tissue damage due to self-mutilating may evolve to cancer. Medical treatment, appliance treatment, extraction of tooth and surgical operation was attempted to control self-mutilaing behaviors. We hereby report the case of child Lesch-Nyhan syndrome patient who has self-inflicted labial damage as chief complaint. When patient was treated with conservate therapy, such as removable or fixed appliance, the frequency of labial damage could be subdued and yielded favorable results.

• Therapeutic Science for Rehabilitation
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• v.11 no.4
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• pp.69-83
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• 2022

Objective : This study aimed to confirm the possibility of the clinical application of oral motor facilitation technique (OMFT) protocol and neuromuscular electrical stimulation (NMES) in patients with Wallenberg syndrome. Methods : One patient with Wallenberg syndrome was treated with OMFT and NMES applied 40 times each, 5 days a week, twice a day for 4 weeks. The Comprehensive Oral-Facial Function Scale (COFFS), Korean-Mann Swallowing Ability Assessment (K-MASA), and Penetration-Aspiration Scale (PAS) were used to compare the changes before and after the intervention. Data analysis was used to compare the score changes before and after the intervention. Results : Orofacial function and swallowing ability improved after the intervention in the individual who participated in this study. Among oral motor functions, relatively greater functional improvement was observed in tongue movement compared to other functions, which was evaluated to the extent that pharyngeal swallowing was possible. Conclusions : Early swallowing rehabilitation using systematic OMFT and NMES of exercise intensity confirmed the possibility of improving oral motor function and dysphagia. In the future, complementary studies on the effects of interventions applying the OMFT and NMES will be needed.

• 재활복지
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• v.21 no.1
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• pp.233-252
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• 2017

The purpose of this study is to investigate the influence on respiration, oral motor and articulation using wind-instrument centered music therapy for patients with cervical cord injury who need continuous train of respiratory muscle. Three patients with cervical cord injury who needed continuous training of respiratory muscle were selected and post data was analyzed. The harmonica using both exhalation and inspiration was selected as an wind-instrument. Each session was taken 30 ~ 40 minutes, once a week from total 6 weeks with small group. Material about every session's work was provided for individual to maintain practice after program. Oral motor and articulation test was done to assess reflecting features of maximal expiratory flow and wind-instrument of factor related breath. Maximal expiratory flow has increased by average 25ml more, articulation has increased by 3.16 points more and the movement of oral motor has increased 11.67 points more than pre-test from the analyzation. In the comparison of the details, the increase of oral motor function was confirmed from scores on the jaw and tongue except for the lips. Based on the results of this study, this study suggests that wind-instrument centered music therapy will be a practical and effective intervention for respiratory rehabilitation in patients with cervical cord injury.

• Journal of Oral Medicine and Pain
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• v.34 no.4
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• pp.421-427
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• 2009

Oromandibular dystonia is a focal neurological movement disorder characterized by involuntary sustained and often painful muscle contraction, usually producing repetitive movements or abnormal positions of the mouth, jaw and.or tongue. Patients suffering from oromandibular dystonia often experience difficulties in chewing, swallowing and speaking, resulting from the impairment of mandibular movements. At present there is no etiologic treatment for oromandibular dystonia, because the pathophysiology of primary and focal dystonia is still incompletely understood. Many treatments such as medication, behavioral therapy, surgery are suggested to decrease the involuntary movements. But these success rates are relatively low and they have a lot of complications. many studies suggested that chemodenervation with botulinum toxin is the most effective treatment for oromandibular dystonia. We reported the 2 cases which were treated oromandibular dystonia with botulinum toxin and reviewed the orofacial movement disorders(especially oromandibular dystonia) and botulinum toxin treatment for oromanfibular dystonia.

• The Journal of Korean Academy of Prosthodontics
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• v.53 no.4
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• pp.352-358
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• 2015

The retention of complete dentures in patients with Parkinson's disease is often poor due to their constant dislodgement by involuntary movements of the tongue and lips. Furthermore, insertion of the overdenture is expected to be difficult due to their limited voluntary movements. This case is about the bimaxillary overdenture restoration where its retention and stability are improved, using magnetic attachment of remained roots of maxilla and two implant $Locator^{(R)}$ attachments of mandible in patients with Parkinson's disease. This report describes the fabrication of this functionally improved prosthesis.